Description
Milwaukee PH55 PRO – pH meter with replaceable probe
The Milwaukee PH55 PRO is an affordable and reliable pH meter with ±0.1 pH accuracy, well suited to quick pH readings when brewing beer, for example of the mash when adjusting water. It has ATC (automatic temperature compensation) and automatic 1 or 2 point calibration. pH 4.01 and pH 7.01 calibration buffers are included.
The LCD shows both pH and temperature. Just dip the probe and read the value. The probe is replaceable, and the meter is rated IP65, meaning it withstands water splashes.
Features
- accuracy ±0.1 pH
- ATC – automatic temperature compensation
- automatic 1 or 2 point calibration
- pH 4.01 and 7.01 buffers included
- shows pH and temperature at the same time
- replaceable probe (Mi56P)
- IP65 – withstands water splashes
Technical data
- pH range: −2.0 to 16.0 pH
- temperature range: −5.0 to 60.0 °C
- pH resolution: 0.1 pH
- pH accuracy: ±0.1 pH
- temperature accuracy: ±0.5 °C
- temperature compensation: automatic from −5 to 60 °C
- calibration: 1 or 2 points with 2 sets of stored buffers (pH 4.01, 7.01, 10.01) or (pH 4.01, 6.86, 9.18)
- probe: replaceable double-junction probe for longer life (Mi56P)
- environment: −5 to 50 °C, max 100 % relative humidity
- batteries: 4 × 1.5 V, IEC LR44 / A76 (included)
- battery life: about 300 hours of use
- auto-off after 8 minutes of inactivity
- dimensions: 20 cm × 3.8 cm (diameter)
- weight: 100 g
Always store the probe in storage solution after use.
Frequently asked questions about the Milwaukee PH55 PRO
How should I store the probe?
The probe should always be kept in storage solution after use. This keeps it moist and in good condition.
Can I measure pH directly in a hot mash?
The temperature range goes up to 60 °C. Take a sample of the mash and let it cool before measuring.
What mash pH should I aim for?
The ideal mash pH is 5.2–5.6. Salts such as calcium sulphate and calcium chloride lower pH, while sodium bicarbonate and calcium carbonate raise it.
Is the PH55 PRO waterproof?
It is rated IP65 and withstands water splashes, but should not be submerged. If you need a waterproof pH meter, see the Milwaukee PH56 PRO.
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